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removed some code we dont need as not expecting any errors so should just throw an exception to the global handler

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This commit is contained in:
Tom Gardham-Pallister
2017-02-06 21:47:08 +00:00
parent a4495b8fa9
commit 0a66051b92
14 changed files with 37 additions and 49 deletions
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4
src/Ocelot/Errors/Middleware/ExceptionHandlerMiddleware.cs
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@@ -41,13 +41,13 @@ namespace Ocelot.Errors.Middleware
var message = CreateMessage(context, e);
_logger.LogError(message, e);
await SetInternalServerErrorOnResponse(context);
SetInternalServerErrorOnResponse(context);
}
_logger.LogDebug("ocelot pipeline finished");
}
private async Task SetInternalServerErrorOnResponse(HttpContext context)
private void SetInternalServerErrorOnResponse(HttpContext context)
{
context.Response.OnStarting(x =>
{

2
src/Ocelot/LoadBalancer/LoadBalancers/ILoadBalancer.cs
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@@ -8,6 +8,6 @@ namespace Ocelot.LoadBalancer.LoadBalancers
public interface ILoadBalancer
{
Task<Response<HostAndPort>> Lease();
Response Release(HostAndPort hostAndPort);
void Release(HostAndPort hostAndPort);
}
}

4
src/Ocelot/LoadBalancer/LoadBalancers/LeastConnectionLoadBalancer.cs
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@@ -53,7 +53,7 @@ namespace Ocelot.LoadBalancer.LoadBalancers
}
}
public Response Release(HostAndPort hostAndPort)
public void Release(HostAndPort hostAndPort)
{
lock(_syncLock)
{
@@ -69,8 +69,6 @@ namespace Ocelot.LoadBalancer.LoadBalancers
_leases.Add(replacementLease);
}
}
return new OkResponse();
}
private Lease AddConnection(Lease lease)

5
src/Ocelot/LoadBalancer/LoadBalancers/NoLoadBalancer.cs
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@@ -17,13 +17,12 @@ namespace Ocelot.LoadBalancer.LoadBalancers
public async Task<Response<HostAndPort>> Lease()
{
var service = _services.FirstOrDefault();
var service = await Task.FromResult(_services.FirstOrDefault());
return new OkResponse<HostAndPort>(service.HostAndPort);
}
public Response Release(HostAndPort hostAndPort)
public void Release(HostAndPort hostAndPort)
{
return new OkResponse();
}
}
}

5
src/Ocelot/LoadBalancer/LoadBalancers/RoundRobinLoadBalancer.cs
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@@ -22,14 +22,13 @@ namespace Ocelot.LoadBalancer.LoadBalancers
_last = 0;
}
var next = _services[_last];
var next = await Task.FromResult(_services[_last]);
_last++;
return new OkResponse<HostAndPort>(next.HostAndPort);
}
public Response Release(HostAndPort hostAndPort)
public void Release(HostAndPort hostAndPort)
{
return new OkResponse();
}
}
}

13
src/Ocelot/LoadBalancer/Middleware/LoadBalancingMiddleware.cs
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@@ -31,14 +31,14 @@ namespace Ocelot.LoadBalancer.Middleware
{
_logger.LogDebug("started calling load balancing middleware");
var getLoadBalancer = _loadBalancerHouse.Get(DownstreamRoute.ReRoute.LoadBalancerKey);
if(getLoadBalancer.IsError)
var loadBalancer = _loadBalancerHouse.Get(DownstreamRoute.ReRoute.LoadBalancerKey);
if(loadBalancer.IsError)
{
SetPipelineError(getLoadBalancer.Errors);
SetPipelineError(loadBalancer.Errors);
return;
}
var hostAndPort = await getLoadBalancer.Data.Lease();
var hostAndPort = await loadBalancer.Data.Lease();
if(hostAndPort.IsError)
{
SetPipelineError(hostAndPort.Errors);
@@ -53,11 +53,12 @@ namespace Ocelot.LoadBalancer.Middleware
{
await _next.Invoke(context);
getLoadBalancer.Data.Release(hostAndPort.Data);
loadBalancer.Data.Release(hostAndPort.Data);
}
catch (Exception)
{
getLoadBalancer.Data.Release(hostAndPort.Data);
loadBalancer.Data.Release(hostAndPort.Data);
_logger.LogDebug("error calling next middleware, exception will be thrown to global handler");
throw;
}

6
src/Ocelot/Responder/HttpContextResponder.cs
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@@ -24,7 +24,7 @@ namespace Ocelot.Responder
_removeOutputHeaders = removeOutputHeaders;
}
public async Task<Response> SetResponseOnHttpContext(HttpContext context, HttpResponseMessage response)
public async Task SetResponseOnHttpContext(HttpContext context, HttpResponseMessage response)
{
_removeOutputHeaders.Remove(response.Headers);
@@ -56,7 +56,6 @@ namespace Ocelot.Responder
{
await stream.CopyToAsync(context.Response.Body);
}
return new OkResponse();
}
private static void AddHeaderIfDoesntExist(HttpContext context, KeyValuePair<string, IEnumerable<string>> httpResponseHeader)
@@ -67,14 +66,13 @@ namespace Ocelot.Responder
}
}
public async Task<Response> SetErrorResponseOnContext(HttpContext context, int statusCode)
public void SetErrorResponseOnContext(HttpContext context, int statusCode)
{
context.Response.OnStarting(x =>
{
context.Response.StatusCode = statusCode;
return Task.CompletedTask;
}, context);
return new OkResponse();
}
}
}

5
src/Ocelot/Responder/IHttpResponder.cs
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@@ -1,13 +1,12 @@
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Ocelot.Responses;
namespace Ocelot.Responder
{
public interface IHttpResponder
{
Task<Response> SetResponseOnHttpContext(HttpContext context, HttpResponseMessage response);
Task<Response> SetErrorResponseOnContext(HttpContext context, int statusCode);
Task SetResponseOnHttpContext(HttpContext context, HttpResponseMessage response);
void SetErrorResponseOnContext(HttpContext context, int statusCode);
}
}

17
src/Ocelot/Responder/Middleware/ResponderMiddleware.cs
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@@ -46,34 +46,27 @@ namespace Ocelot.Responder.Middleware
_logger.LogDebug("received errors setting error response");
await SetErrorResponse(context, errors);
SetErrorResponse(context, errors);
}
else
{
_logger.LogDebug("no pipeline error, setting response");
var setResponse = await _responder.SetResponseOnHttpContext(context, HttpResponseMessage);
if (setResponse.IsError)
{
_logger.LogDebug("error setting response, returning error to client");
await SetErrorResponse(context, setResponse.Errors);
}
await _responder.SetResponseOnHttpContext(context, HttpResponseMessage);
}
}
private async Task SetErrorResponse(HttpContext context, List<Error> errors)
private void SetErrorResponse(HttpContext context, List<Error> errors)
{
var statusCode = _codeMapper.Map(errors);
if (!statusCode.IsError)
{
await _responder.SetErrorResponseOnContext(context, statusCode.Data);
_responder.SetErrorResponseOnContext(context, statusCode.Data);
}
else
{
await _responder.SetErrorResponseOnContext(context, 500);
_responder.SetErrorResponseOnContext(context, 500);
}
}
}

2
src/Ocelot/ServiceDiscovery/ConfigurationServiceProvider.cs
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@@ -15,7 +15,7 @@ namespace Ocelot.ServiceDiscovery
public async Task<List<Service>> Get()
{
return _services;
return await Task.FromResult(_services);
}
}
}